#include <iostream>
#include <cstdio>
#include <ctime>
using namespace std;
void Print(int sum)
{
    long long timestamp = time(NULL);
    printf("result = %d,timestamp:%lld\n",sum,timestamp);
}
int addtoval(int from ,int to)
{
    int sum = 0;
    for(int i=from;i<to;++i)
    {
        sum+=i;
    }
    return sum;
}
int main()
{
    int sum = addtoval(0,100);
    printf("hello a\n");
    printf("hello b\n");
    printf("hello c\n");
    printf("hello d\n");
    printf("hello e\n");
    printf("hello f\n");
    printf("hello g\n");
    printf("hello h\n");
    Print(sum);
    return 0;
}
